Home / 2,777.53-4,170.40-1,137.28

Finding the Fourth Proportional to 2,777.53, 4,170.40 and 1,137.28

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Solution

The fourth proportional to 2,777.53, 4,170.40 and 1,137.28 is: 1,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.53 : 4,170.40 = 1,137.28 : x
  2. Step 2: Convert to fraction form
    2,777.53/4,170.40 = 1,137.28/x
  3. Step 3: Cross multiply
    2,777.53x = 4,170.40 × 1,137.28
  4. Step 4: Simplify right side
    2,777.53x = 4,742,907.06
  5. Step 5: Solve for x
    x = 4,742,907.06/2,777.53
  6. Step 6: Final answer
    x = 1,707.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.